Drying apparatus for photographic prints.



H. T. NEUMAN.

DRYING APPARATUS FOR PHOTOGRAPHIC PRINTS.

APPLICATION FILED SEPT.3. 1914.

1,148, 1 1 7. Patented July 27, 1915.

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HENRY TLNE UM N', or new YonK, N. Y.

DRYING APPARATUS FOR PHOTOGRAPHIC PRINTS.

Specification of Letters Patent. Y

Patented July 27, 1915.

Application filed September 3, 1914. Serial No. 859,954.

- vented a certain new and useful Drying Apparatus for PhotographicPrints, of which the following is a specification.

This invention relates to devices for drying photographic prints and itsprincipal object is to provide a simple, inexpensive,

and improved apparatus for this purpose, with which the simultaneousdrying of a large quantity of prints may be accomplished rapidly andconveniently, and which will impart to the prints a permanently flat anduniform surface.

Other objects and advantages will hereinafter appear.

In the accompanying drawings, Figure 1 shows a general sectionalelevation of the drying apparatus, taken on the line a:zr of Fig. 2.Fig. 2 is a bottom plan view of Fig. 1. Fig. 3 is a fragmentary viewshowing the upper portion of the apparatus in elevation, with the springclasp holding the outer edge of the cloth band.

A cylindrical shell 1 of fiber has a top plate 2 of metal securedthereto at one end by means of the edge 2 of the plate being spun so asto embrace and grip forcibly the edge 1 of the shell, and to theopposite end 1 of the shell 1 is secured a similar bottom plate 3 in asimilar manner. Said shell is provided with a large number of holes 4:and is thus perforated throughout, in about the manner shown in Fig. 1.The top and bottom plates 2, 3 are likewise provided with holes 5,preferably arranged about as shown in Fig. 2. Flat metal legs 6,preferably three in number, are secured to the bottom 3 at 7 andconverge therefrom toward the longitudinal center line of the shell 1,whereat said legs are joined to a collar 8 that is adapted to fit over agas tip or burner 9 such as is ordinarily used for heating orilluminating. The shell 1 is provided with a band 10, of cloth or othersuch suitable flexible material, having a Width that is somewhat lessthan the shell and a length which permits it to be wound several timesaround the shell.

hen it is desired to dry a quantity of photographic prints the band 10is first wound around the shell 1 to encircle it once or twice, and thenas the winding of the band is continued the moist prints 17 areinterposed between the several windings of the band untilthe outer edge10 is reached. In order to hold the band-edge 10 in place each end ofthe shell is provided with a clasp 11 which consists of a spiral spring12 having one end-curl 13 secured to the top or bottomv plate 2, 3 andthe other end-curl terminating in the form of a loop 1 1, a portion 15of which extends along the longitudinal center line of said spring, andanother portion 16 thereof is bent around tohold the edge 10. While theband is being wound around the shell the loop-portions 16 of both clasps11 can be turned aside and thus placed out of the way, and at thecompletion of the winding said portionsmay be twisted back to theposition shown, whereupon the springs 12 pulling on said loop-portions16 causes them to be drawn forcibly against the bandedge 10 which isthereby effectively maintained in place. The moist photographic printshaving been in this manner placed around the shell 1 and beingmaintained pressingly therearound by the windings of the band 10, theapparatus may be mounted over the burner 9, by slipping the collar 8over the burner as shown, and the gas flame then lighted. The heatgenerated by the gas flame passes through the perforations 5 of thebottom 3, into the interior of the shell 1, and out through theperforations of the top 2. The interior of the shell thereby becomesheated and this heat passes through the shellperforations 1 and butpartially through the fiber wall of the shell, because this materialconducts the heat partially, and it thus warms the layers of the band 10with the intervening prints 17 effectively, by which means the printsbecome uniformly and effectively dried. In passing from the interior ofthe shell through its perforated fiber wall the heat is properlymodulated, so that in passing through the prints pressed between thelayers of the band the heat, in conjunction with such pressing, afi'ectstheir drying in a manner that imparts to the prints a permanently Hatand even surface and precludes wrinkling or undue curling thereof. Uponcompletion of the drying the band 10 may be readily unrolled and thefinished prints removed.

It will be evident that the apparatus may be constructed in varioussizes to suit the various classes of photographic prints, and

' also that the shell 1 and'band 10 may be proportioned to permit alarge quantity of prints to be dried simultaneously. v

Variations may be resorted to within the scope of the invention. Y

Having thus described my invention, I claim 1. An apparatus for dryingphotographic prints comprising a cylindrical shell, a perforated top andbottom for said shell, means for mounting said shell over a burner toheat its interior, a band adaptable to be wound several times aroundsaid shell and to hold the prints interposed between its windings, andmeans to clasp the outer edge of said band.

2. An apparatus for drying protographic prints comprising a cylindricalfiber shell, a perforated top and bottom for said shell, means formounting said shell over a burner to heat its interior, a band adaptableto be wound several times around said shell and to hold the printsinterposed between its windings, and clasps to hold the outer edge ofsaid band.

3. An apparatus'for drying photographic prints comprising a shell, meanssecured thereto for mounting it in upright position over a burner toheat its interior, a band adaptable to be wound several times aroundsaid shell and to hold the prints interposed between its windings, andmeans to clasp the outer edge of said band, said clasping meansincluding a spiral spring having a curl thereof fixed to the apparatusand a loop extending from said spring being drawn thereby against theedge of said band.

4. An apparatus for drying photographic prints comprising a shell, aband adaptable to be wound therearound several times and to hold theprints interposed between its windings, and means secured to said shellfor mounting it in upright position over a burner for heating itsinterior.

Signed at the city of New York, in the county of New York, and State ofNew York, this 1st day of September, A. D. 1914.

HENRY T. NEUMAN.

Witnesses:

CHAS. W. LA R E, B. ROMAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, E C.

